Klepikovskyy A. Improving the accuracy of quartz resonant temperature control systems using Peltier thermoelectric modules

The thesis is devoted to theoretical and applied research on improving methods for thermal stabilization of resonant piezoelectric element using semiconductor Peltier thermocouples. To achieve this improved method for thermal stabilization of resonant piezoelectric element based on the temperature of its internal dynamics and current using semiconductor thermo elements, the mathematical model of semiconductor thermo elements Peltier including mechanical stress and improved simulation model frequency synthesizer based on the temperature stabilized crystal oscillator with considering thermal effects. The basis of this method of temperature stabilization piezoelectric resonators assigned operational control of the dynamics of crystal temperature on the dynamics of instantaneous current flowing through it and the corresponding changes in temperature compensation using low jet, thermoelectric, Peltier semiconductor elements. The results of evaluating the effectiveness of the proposed method of thermal stabilization showed that its application allows to increase the temperature stability of the quartz crystal frequency AT-cut on the top fashion vibrations by 17% due to narrowing of the temperature range of up to 0.1 degrees. Assessment own resonant frequency Peltier thermo element allowed to select a narrow range of designs of thermocouples that can be used for temperature stabilization of resonant electromechanical systems.